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Denim Fabric Test

Denim Fabric Test

2020-12-07

Common denim fabric classification

Denim fabric can be divided into plain weave, twill weave, slub, etc. due to their different production processes. In terms of the ingredients contained in denim fabric, denim is divided into combed and carded, 100% cotton, cotton and linen blended with Lycra, etc. At present, the market is mainly popular ring yarn denim, warp and weft slub denim, overcolor and assorted denim, etc.


Traditional denim vs. generalized denim

 Traditional denim is a right twill fabric, which is made of indigo-dyed cotton warp yarns and white weft yarns interlaced three times. The woven yarn is woven with pure cotton natural fiber. The denim fabric has strong moisture absorption, good air permeability and no irritation to human skin. At the same time, indigo is a coordinated color that can match other colors. The thick special warp yarns are interwoven, and the color floats of the warp yarns and the white floats of the weft yarns are matched in proportion to form a cloth with clear blue and clear texture. In addition to the use of pure cotton yarn, denim fabric in a broad sense also use other fibers or synthetic fibers. The dyeing of warp yarns has also got rid of the traditional single indigo dyeing, and a variety of colors have appeared, making denim fabric from a single raw material, thick and single tone. Varieties are developing in a multi-variety and multi-color direction.

 Characteristics of denim clothing

Due to factors such as raw materials, yarn characteristics, weaving methods, etc., the use of different processing techniques will cause denim fabric to have different appearance characteristics. The denim fabric is woven with coarse special yarn, and the finished product is thick and heavy. When tailored as a garment, the garment has a three-dimensional shape, unlike other fabrics, which is soft; at the same time, the denim fabric is wear-resistant, cost-effective, and is loved by consumers.


Analysis of defect characteristics of denim fabric

From the previous chapter, we know that in the process of denim fabric testing equipment, defects may occur in any production process. Defect detection is an important part of denim fabric production and quality management. At present, manual inspection is easily affected by subjective factors and lacks consistency. At the same time, working under strong light for a long time has a greater impact on workers’ eyesight.


Due to the wide variety of defects and diversified shapes, the denim fabric image data set in this paper uses high-definition denim images collected by the first-line textile workshop. Including defects such as knots, three threads, holes, oil stains, etc., the defect data of denim fabric is manually confirmed by experienced Fabric Testing Machine and manually marked. The data set covers all kinds of important defects in denim fabric, and each image of denim fabric contains one or more defects.


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